GB763682A - Improvements relating to rotor members for dynamo-electric machines - Google Patents

Improvements relating to rotor members for dynamo-electric machines

Info

Publication number
GB763682A
GB763682A GB244/55A GB24455A GB763682A GB 763682 A GB763682 A GB 763682A GB 244/55 A GB244/55 A GB 244/55A GB 24455 A GB24455 A GB 24455A GB 763682 A GB763682 A GB 763682A
Authority
GB
United Kingdom
Prior art keywords
magnets
magnet
jan
pair
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB244/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB763682A publication Critical patent/GB763682A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/46—Motors having additional short-circuited winding for starting as an asynchronous motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

763,682. Synchronous machines. GENERAL ELECTRIC CO. Jan. 4, 1955 [Jan. 4, 1954], No. 244/55. Class 35. A rotor for a synchronous motor or generator comprises a squirrel cage carried by a laminated ring within which are secured permanent magnet blocks. The magnets which are located on a shaft 1 are arranged in pairs 4, 4 and 5, 5 and the outer polarity of one pair being opposite to that of the other pair as shown in Fig. 1. The shaft 1 has a portion of rhombic crosssection on whose flats the magnets 4, 5 are located and from which they extend to meet the ring 7. Unequal flux density in the magnets is prevented by making the cross-section of each magnet constant throughout its radial length by making the axial length of each magnet progressively longer towards the inner part as in Fig. 2 where the magnet axial outer edge is represented by L and that of the inner edge by M. Specification 677,940 and U.S.A. Specification 2,643,350 are referred to.
GB244/55A 1954-01-04 1955-01-04 Improvements relating to rotor members for dynamo-electric machines Expired GB763682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US763682XA 1954-01-04 1954-01-04

Publications (1)

Publication Number Publication Date
GB763682A true GB763682A (en) 1956-12-12

Family

ID=22131561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB244/55A Expired GB763682A (en) 1954-01-04 1955-01-04 Improvements relating to rotor members for dynamo-electric machines

Country Status (2)

Country Link
JP (1) JPS325303B1 (en)
GB (1) GB763682A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059557B (en) * 1957-03-07 1959-06-18 Licentia Gmbh Runner for hysteresis motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059557B (en) * 1957-03-07 1959-06-18 Licentia Gmbh Runner for hysteresis motors

Also Published As

Publication number Publication date
JPS325303B1 (en) 1957-07-23

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